High-Pass Filters
Refine signal, allowing the transmission of signal above a specific corner frequency, while strongly attenuating the frequencies below.
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Product
Notch Filters
MINI-POLE Notch Series
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MINI-POLE® Notch Filters are optimized for small physical size and low power consumption. Two standard package styles are available (PC-Mount and SMA).
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Product
EMC & EMI Filters
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CTS is the leader in EMI/RFI filters and offers a diverse product line of standard as well as custom filters to suppress electromagnetic interference (EMI) / radio frequency interference (RFI), thereby providing customers with a wide range of electro-magnetic compatibility (EMC) solutions. Discover cutting-edge solutions for your electromagnetic compatibility needs with CTS EMC products. Our innovative range is engineered to deliver unparalleled performance, ensuring seamless connectivity and optimal functionality across diverse industries.
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Product
MEMS Tunable Filter
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Optoplex’s MEMS Tunable Optical Filter is based on a patented micro-optic design with MEMS tuning technology. It is an integrated module consisting of a MEMS chip, micro-optics and control electronics and interface. When receiving a stream of optical signals of a plurality of wavelengths from the Input-Port (IN), the 2-port tunable optical filter directs a selected channel to the Output-Port (OUT). Wavelength (frequency) tuning is achieved by changing driving voltage applied to the MEMS chip, via the control electronics and the built-in firmware.
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Product
High-Power Tunable Filter
CB503
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The need for tunable filter technology originates from the fact that high power communication systems and IED Jammer transmitters severely limit the use of tactical radio communication systems on the battlefield.This clash within the radio’s spectrum during tactical missions is often de-conflicted using fixed high Q, high power RF bandpass and bandstop filters installed prior to mission. This can limit operational effectiveness due to the potentially large number of fixed filters required within the allocated radio communication channels, which need be transported, stored in the field, and fitted by trained personnel. Many of these fixed filters centred within the octave wide tuning range could be replaced by a single high-Q tunable filter.
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Product
Dual Filter
Trig-TekTM 550D
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Two channels with variable high pass and low pass filters in a module 7" high x 2.6" wide
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Product
Filtered DC Interface Module
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DC modules for RF Test Enclosures eliminate conducted and radiated interference, while providing a source of DC power.
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Product
Band Pass Filters
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*High power handling 200W with a wide range of bands available*Excellent Isolation with Low Intermodulation*High reliability of >500K Hours MTBF and multi-strike lightning protection*Support for 7-16 or 4.3-10 connectors and optional 19 inch rack mount kit*Designed and produced to ISO 9001:2008 certification standards for reliability and quality
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Product
Band Pass Filters
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VDI offers up-converter modules for communication applications. The double sideband nature of the up-converter modules makes filtering necessary. VDI has designed filters to filter one sideband and preserve signal modulation. These filters offer low passband insertion loss and high out-of-band rejection. Custom filters may be available upon request. NRE (non-recurring engineering) fee may be required.
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Product
Harmonic Filter Resistors
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The widespread use of nonlinear loads such as power electronics based equipment and electric arc & ladle melt furnaces all around the world hinder the quality of electric power. One of the most important parameters for defining the power quality is harmonic distortion.
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Product
Low-Pass Filters
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Is a filter that passes signals with a frequency lower than a selected cutoff frequency and attenuates signals with frequencies higher than the cutoff frequency. The exact frequency response of the filter depends on the filter design.
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Product
Automatic Batteries with Filters with Thyristors
BATLVFS1000
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations.
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Product
Broadcast Filters VHF DAB
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The filters offer a compact and flexible solution for both transmitter mask filtering and digital RF channel combining. The DAB filter range is founded on RFS' world-leading RF combining technology and utilizes a similar platform of components to the company's VHF Band III;digital television combiners. DAB filters can beincorporated within transmitters to provide critical mask filtering of the digital RF signal, in keepingwith global DAB standards. When used as the key components of a balanced DAB combiner, thefilters can achieve both critical transmitter masking and adjacent channel combining simultaneously,eliminating the need for additional filters within the transmitter.
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Product
Harmonic Filter Resistors
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Post Glover designs, builds and tests their harmonic filter resistors in accordance with applicable IEC and IEEE standards to guarantee their performance. With no two installations ever being the same, our experienced engineers develop the proper solution for your particular application and environment. Our low inductance designs are built using all stainless steel elements in corrosion resistant enclosures chosen for your unique specification. Request a quote for your custom harmonic filter resistor.
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Product
Capacitor for AC Filtering
PECA4 (440V)
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Lifasa - International Capacitors, SA
These capacitors are especially suitable for applications where high levels of AC voltage are required. The design of this series has been optimized for the manufacture of high performance AC filters for compensation equipment with high pollution such as UPS or wind turbines.
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Product
16-Channel Anti-Alias Low-Pass Filter Card
AAF-16
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The AAF-16 is a 16-channel anti-alias low-pass filter card series for front-end signal conditioning in PC-based data acquisition systems.
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Product
dv/dt Filters
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dV/dT Output Filter Modules effectively protect motors against these high voltage spikes due to the use of motor cables between IGBT based motor drives and motors.
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Product
Tunable Filter Spectrometers
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MKS Instruments' platform of innovative optical analyzers based on Tunable Filter Spectroscopy (TFS™) provides real-time gas analysis, while delivering customers a substantially lower total cost of ownership. TFS™ can be utilized from UV (Ultra-Violet) through IR (Infra-Red) spectral regions. MKS TFS™ sensor platforms have been on the market since 2008 with more than 2500 systems deployed.
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Product
Telephone Attenuators & RFI Filters
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Despite the growth in digital and fiber systems, many telephone companies still require basic line treatment products. Wilcom's hard-to-find line treatment products help the telecommunications industry deliver the performance the customer expects. Products include line powered amplifiers and RFI filters.
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Product
Tunable Filters
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K&L Microwave offers a variety of Tunable Filter Products to satisfy a broad range of filtering applications. Tunable Bandpass and Bandreject filters provide the best solution for pre-tuning the desired signals while rejecting the interfering signals. The method of tuning can be either mechanical via a tuning knob mounted on the front of the filter, or electro-mechanical via an optional remote digital interface such as GPIB, RS-232, RS-422 or BCD.
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Product
RF Filters
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Smiths Interconnect is committed to providing technically advanced, high quality “state-of-the-art” RF Filters, Multiplexers, Switched Filter Banks, and Integrated assemblies, from 100 KHz to 65 GHz. All products are subject to the same rigorous design, manufacturing, and inspection criteria. Regardless of the application, our internal process and procedures help ensure that all products are fully compliant to all specifications. Our R & D activities are constantly evaluating new materials, plating techniques, and manufacturing processes to offer the highest performing components available today.
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Product
Filters
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Filters are components with a function that only extracts the required electrical signals, and removes the unnecessary electrical signals in electrical circuits. Murata offers a lineup of filters for various devices and functions.
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Product
Fast Tuned Notch Filter
ES005 & ES006
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Teledyne Defence & Space’s (TDS) range of Fast Tuned Notch Filters (FTNF) have been designed to protect Electronic Support Measures (ESM) receivers from high duty cycle, frequency agile interference produced by on board (or cohort) combat radar systems. ESM sensors often need protection from high power nearby radars, and such signals can reduce receiver dynamic range.
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Product
Automatic Battery with Filters with Standard Contactors
BATLVF600
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensationof power factor in low voltage instalations.
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Product
Gas Filter Correlation CO2 Analyzer
Model N360
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Teledyne Advanced Pollution Instrumentation
The Model N360 measures carbon dioxide (CO2) by comparing infrared energy absorbed by a sample to that absorbed by a reference according to the Beer-Lambert law.The N360 uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases (such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up of two separate chambers: one containing a high concentration of CO2 known as the reference, and the other containing a neutral gas known as the measure. The concentration of CO2 in the sample chamber is computed by taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample temperature and pressure. A nitrogen purge system is provided for the GFC wheel assembly to eliminate the effects of ambient CO2, if necessary.
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Product
Low Pass and Bandpass SMA Coaxial Filters
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Fairview Microwave’s bandpass filters were developed for use in various applications including GPS, ISM, RFID and Wi-Fi systems and operate in several bands, some as low as 824 MHz and some as high as 5.875 GHz. Fairview’s low pass filters allow for tailoring of a test setup for a specific application and support upper band edges of 100, 225, 400, 1000, 2000 and 3000 MHz. All of these bandpass filters and low pass filters feature female SMA connectors.
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Product
Power Capacitors with Protection Filter
CPFVF / CPMVF
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Lifasa - International Capacitors, SA
The capacitors of the CPFVF and CPMVF series are formed by a power capacitor, an antiarmonic protection reactance and fuse or magnetothermic protection. These capacitors are specially designed for the fixed compensation of transformers in networks with a high level of harmonics.
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Product
Ground EMI Filters
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High-frequency signals on ground is never good news - it interferes with normal operation of equipment and creates electrical overstress (EOS). However it is easy to block propagation of EMI on ground by installing highly-effective ground EMI filtes in ground lines. Our unique patent-pending ground EMI filters provide very low impedance for DC and mains' power while effectively blocking propagation of high-frequency currents throughout facility or equipment ground. Ground filters meet safety standards, as well as ANSI/ESD S6.1 and ANSI/ESD S20.20.
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Product
Wide Band Filters (multi-octave)
HF-ERF™ Series
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The HF-ERF™ is an internally switched 3‑band, low cost, miniature, high performance tunable filter. The HF-ERF™ was designed to have the best insertion loss and Q in the smallest package possible, 2.0” x 2.78” x 0.6”. All HF-ERF™ filters are fully tested and aligned by Pole/Zero for convenience and ease of use. Both SPI and Parallel control interfaces are available in one filter. Modified variants are available upon request.
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Product
Notch Filters
Power-Pole Notch Series
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POWER-POLE® Notch Filters offer improved performance and power handling over our MINI and MAXI Notch Filters.





























